Important Information
Fail-Safe Systems
A5E00085588-03 v
How to Use this Manual
To help you find specific information quickly, the manual contains the following
aids:
• There is a complete table of contents at the beginning of the manual.
• A heading indicating the contents of each section is provided in the left-hand
column on each page of each chapter.
• Following the appendices, you will find a glossary in which important technical
terms used in the manual are defined.
• At the end of the manual you will find a detailed index, which makes it easy for
you to find the information you are looking for.
Additional Support
For any unanswered questions about the use of products presented in this manual,
contact your local Siemens representative:
http://www.siemens.com/automation/partner
Training Center
We offer courses to help you get started with the S7 automation system. Contact
your regional training center or the central training center in Nuremberg (90327),
Federal Republic of Germany.
Telephone: +49 (911) 895–3200
http://www.sitrain.com
H/F Competence Center
The H/F Competence Center in Nuremberg offers special workshops on SIMATIC
S7 fail-safe and fault-tolerant automation systems. The H/F Competence Center
can also provide assistance with onsite configuration, commissioning, and
troubleshooting.
Telephone: +49 (911) 895-4759
Fax: +49 (911) 895-5193
For questions about workshops, etc., contact: hf-cc@nbgm.siemens.de
For Safety Integrated questions (system, wiring, etc.), contact:
cocsi@nbgm.siemens.de